206280105 has 16 divisors (see below), whose sum is σ = 331309440. Its totient is φ = 109595648.

The previous prime is 206280071. The next prime is 206280119. The reversal of 206280105 is 501082602.

206280105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 206280105 - 2⁷ = 206279977 is a prime.

It is a super-2 number, since 2×206280105² = 85102963437622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22200 + ... + 30089.

It is an arithmetic number, because the mean of its divisors is an integer number (20706840).

Almost surely, 2^206280105 is an apocalyptic number.

It is an amenable number.

206280105 is a deficient number, since it is larger than the sum of its proper divisors (125029335).

206280105 is a wasteful number, since it uses less digits than its factorization.

206280105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52560.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 206280105 is about 14362.4546996675. The cubic root of 206280105 is about 590.8616205402.

The spelling of 206280105 in words is "two hundred six million, two hundred eighty thousand, one hundred five".